When a deadly text message threatens to kill all the attendants at the upcoming Valentine's Day dance, it's up to a group of teens to solve the mystery of the SMS before any more lives are lost. Sarah Madison (Hanna Hall) was still… MoreWhen a deadly text message threatens to kill all the attendants at the upcoming Valentine's Day dance, it's up to a group of teens to solve the mystery of the SMS before any more lives are lost. Sarah Madison (Hanna Hall) was still recovering from the recent death of her sister when the sinister text messages began to appear. Now, as the message starts to spread, the students begin dropping like flies. Reggie Bannister and Jonathon Trent co-star.